Factor of 20 : 1,2,4,5,10,20
Factors of 88 : 1,2,4,8,11,22,44,88
Factors of 165, 1,3,5,11,15,33,55, 165
so the greast common factor is 1
The gcf is 1.
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the greatest common factor of 20 and 100 is:20
The greatest common factor (GCF) of 20 and 30 is 10.
The greatest common factor of 20 and 26 is 2
The greatest common factor of 20 and 32 is 4.
The greatest common factor would have to be 20.